that sounds peculiar. combat loot rolls are not affected by gear (only mining)
did you do some command line editing that might have broken stuff?
Nothing at all. Just grinding normally. It just started to happen at some point. Like I said though, I have no idea what, if any actions are related, only that it happened at about that point in the game.
I also have that problem, when I placed the Underverse subunits it started to only drop the AI cores
